internal val reader: Http2Reader,
  ) : Http2Reader.Handler, () -> Unit {
    override fun invoke() {
      var connectionErrorCode = ErrorCode.INTERNAL_ERROR
      var streamErrorCode = ErrorCode.INTERNAL_ERROR
      var errorException: IOException? = null
      try {
        reader.readConnectionPreface(this)
        while (reader.nextFrame(false, this)) {
        }

            initProtocolVersions((DialectVersion) null, null);
        }

        if ( this.disallowCompound == null ) {
            // Samba woes on these
            // Smb2SessionSetupRequest + X -> INTERNAL_ERROR
            // Smb2TreeConnectRequest + IoCtl -> NETWORK_NAME_DELETED
            this.disallowCompound = new HashSet<>(Arrays.asList("Smb2SessionSetupRequest", "Smb2TreeConnectRequest"));
        }
    }